Mechanical Properties of Aluminium 7075 Matrix Composites

Aluminium alloys are widely used in aerospace and automobile industries due to their low density and good mechanical properties, better corrosion resistance and wear, low thermal coefficient of expansion as compared to conventional metals and alloys. The excellent mechanical properties of these materials and relatively low production cost make them a very attractive candidate for a variety of applications both from scientific and technological viewpoints. This project focuses on the fabrication of Aluminium 7075 matrix composites reinforced with B4C and varying weight % of Al2O3 particulates by Stir casting method. The Microstructure and Mechanical properties of the fabricated Aluminium metal matrix composites are analysed. The SEM images reveal the homogeneous dispersion of Al2O3 and B4C particle in the matrix. The mechanical properties like Hardness and tensile strength have improved with increase in wt % of Al2O3 and B4C particulates in the Aluminium Matrix.